Dish washing apparatus



Nov. 10, 1931, w. L. LINDGREN 1,831,774

DISH WASHINQ APPARATUS Filed Aug. 14. 1928 5 Sheets-Sheet. l

Nov. 10, 1931. w. L. LINDGREN DISH WASHING APPARATUS .3 Sheets-Sheet 2 Filed Aug. 14. 1928 I/Il'I/II IIIA'IIIIIIII swm Nov. 10, 1931. w. L. LINDGREN DISH WASHING APPARATUS I5 Sheets-Sheet 3 Filed Aug. 14. 1928 A WW 7y Ingram On" Patented Nov. 10, 1931 UN TED STATE PATENT onion 2 1 WALDEMAR; L. LINDGREN, or wnnxnehnjfrnrin eis',assrenon or own-manure mm:

' n. nnrcssorr or cnrcaeo, ILLINOIS 7 msn WASHING nr rana'rns:

Apprica'tion filed August 14, 1928-, Serial No. 299,485;

My invention is concerned with dish washing apparatus of the type shown in.v my come panion application No., 299,486,, filed Au 1.4, 1928, now Patent No. 1,798,425,. dated March 31, 1981, and is more especially designed to produce dish-washing: apparatus'of the type referred to which shall be power-operated and which, although, permanently secured in a portion of the'sink, can be tilted: up: to get at the other side for cleaning,,etc.: V I To illustrate my invention, I annex hereto three sheets of drawings, in which the same reference characters are used toirdesignate 7 identical parts in all the figures, of which,,

Fig. 1is a top plan view of sink having my invention applied thereto; I

Fig. 2 is a front elevation of the same, partly in section, on the line 2-2- of. Fig. 1 v

Fig. 3 is a View on a larger scale, showing the dish-washing apparatus. proper tilted up so that the under side can be gotten at;

Fig. 4 is a vdetail in cross section on the line 4-4 of Fig. 2, but on a larger scale;

Fig. 5 is a detail in section on the line 55 of Fig. 1, but on a larger scale; and

Fig. dis a detail in section on the line 6;6

In carrying out my invention in its preferred form, I preferably employ what I may call a duplex sinkhaving; the right-hand portion 10 of an ordinary sink construetlon, with the customary hot. and cold water. fancets 11 and 12' co-opera-ting therewith in the customary manner. The left-hand member 13, with which the dish-washing apparatus is particularly associated, is of a similar construction except as to the faucets, and the two sinks are preferably separated. by a rib 14 extending between them and made of the: same material,- and, in fact, constituting a portion of the body-of the sink. Thetwohalves will be provided with the drain pipes 15- and 16.

The dish-washing apparatus proper is con structed of two symmetrical side-frame members 17, which are connected at the left-hand end by a cross piece 18 screwed thereon, while theright-hand ends are preferably connected by the table piece 19 hayingthe; triangular side members 20 suitably secured, by bolts or otherwise, to the adjacent ends of the side frames, so that a rigid structure is" secured The right hand end is supported the pair of legs 21, but the left-hand end is mainly supported by the connections to be described for the operating shaft 22, which lias'the sprocket wheel's connected thereto toward its ends, but on the inside ofthe" frame mem-' bers 17. The hot-water pipe 24 extending through the side wall is supplied with the hand cock'25, from which extends a' horizontal 'sleevemember 26 having the'fia'nge 27 adjacent the 0001125,. preferably forming a part of the sleeve, while the other end has the ring flange 28 threaded thereon to hold I the transverse, cylindrical end 29 0f the sub stantially horizontal',hot-water pipe member 30 in place The sleeve 26, is provided with an outlet 31 which co-operates with the; pipe member when tlie apparatus is in the operative position shown in Fig, 2 so that hot water is carried to the two spray pipes 32 and 33 which terminate in the spray'he'ad's 34: and 35, which have theirupper surfaces 36 curved in both vertical sections and perforated, so that a spray of water is thrown up ward and sidewise to contact with the dishes on the skeleton conveyor. This convejor' is formed of a series of rods 37 connected. the links-38w as to produce an endless chain, the rods 37 adjacent the links co-operating with the recesses in the sprocket wheels 23' bywhich they are driven, and'with the similar recesses in the similar sprocketwheels 39 secured to or mounted to rotat'eoon the shaft 40 secured in suitable bearings in the right-hand end of the side frame members 1 7,

Withthe construction described, it will be obvious that as the shaft 22 is rotated clockwise, the upper run, of the skeleton frame will travel from left to right, the links 38, thereof riding on the flanges 40'. formed on the inner face of the side frame 17, for this purpose. The sleeve member 26 has the bearing 41, in its outer end, which receives the adjacent end of the shaft 22, which also has a short b'earing42 therefor formed as a part of the outside frame 17. The. other end of the shaft 22 has: thebearing 43 in the side frame on that end,- and splined ontheshaft adjacent said bearing is the worm gear lVith the construction thus fardescribed,

it will be seen that the frame can be swung from the normal operating posltion shown in Fig. 2 up to the positlon shown in Flg. 3,

where it may be held by the wire bail 51 having its ends journaled at 52 on the side frames, and having its cross piece provided with the two loops 53 for a purpose to be described. When the washing apparatus is tilted up, as shown in Fig. 3, the bail 51 is of the proper length so that its ends will engage the rib 14 at its base and hold the mechanism in its elevated position. Above the cock 25 is a similar cock 54 connected to the hot-water pipe 55 led in from the wall, and provided with the short pipe 56 which connects to the elbow 57, which has connected thereto the horizontal pipe 58, which has the T 59 therein and the elbow 60 at its end, which '1' and elbow are connected to the swiveled connections 61 and 62, which have the elbows 63 and 64 connected to the pipes 65 and 66 of the spray members 67 and 68, similar to the spray members 34 and 35 excent that their perforated surfaces face downwar ly so that both i he tops and bottoms of the dishes passed beneath the spray members are subject to the action of the cleansink. water. The two spray members 34 and 67 have a soap-holding structure associated therewith, such as is described in the aforesaid companion application No. 299,486, so that the dishes are first subjected to a spray of hot suds, after which they are subjected to a spray of clean water from the lower spray member 35 to the right and the upper sprav member 68.

When the apparatus is in use, the spray members 67 and 68 are extended transversely of the apparatus, as seen in Fig. 1, but when it is to be elevated to the position shown in Fig. 3, they will be swung around until they are in line with and beneath the pipe 58, where they are not in the way of the framework when it is swung up to the position shown in Fig. 3. v

To confine the water sprayed upon the dishes within proper limits, I preferably provide a cover mechanism which consists of two halves, each of which is composed of a horizontal section 69 and a vertical section 70 hinged thereto, the top members 69 co-operating and being provided with apertures through which the loops 53 extend upwardly when the covers are in-place, so that by turn tilted up to clean, they have first to be removed by loosening the hooks 71, after which they can be detached. :Of course, these covers have recesses in the horizontal portion 69 to accommodate the spray members 67 and 68, the perforated portions of which extend below the tops of the covers.

To drive the mechanism thus far described, I preferably employ a small electric motor 72, which is suspended from the under side of the sink near its edge, the sink being preferably provided with an outwardly extending portion 73 to position properly tlie'motor relative to the dish-washing mechanism. The armature shaft 74 of the motor extends up through a bearing aperture in the bottom of the sink 13 and has secured on its upper end the clutch member 75, which in use cooperates with the clutchmember 76 secured on the lower end of the vertical shaft 77 journaled in the bearings 78 and 79 formed in the'gear casing 80 secured tothe side of the adjacent side frame 17, as seen in Fig. 5. This gear casing 80 has journaled therein one end of a longitudinal shaft 81, which has secured thereon the worm gear wheel 82 meshing with the worm gear 83 secured on the shaft 77. The other end of the longitudinal shaft 81 is journaled in the lower portion of the gear casing 45 and has secured thereon the worm 46 previously mentioned as meshing with the worm gear wheel 45. With the connections thus described, it will be obvious that the rotation of the armature of the motor 72 will cause the shaft 22 to rotate at a very muchreduced speed owing to the double worm and gear reduction, and it will also be obvious that when the frame is tilted up, the motor is disconnected, but is automatically connected when the frame is lowered.

The outlet 31 co-operating with the pipe member 30 is preferably of a size suflicient to admit water to the pipe member 30' when it isswung upward as shown in Fig. 3, so that the spray from the heads 34 and 35 can be utilized in washing the machine itself when it is swung up for that purpose. It will beobvious' that thespray with the ma chine swung up,after deflection, will strike portions thereof at different angles from those at which it strikes them when the machine is down and'in operation, and will also strike other portions of the'machine.

inseam:

While have shown as described my vention as embodied the form which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and that I do not desire to be limited in the interpretation of by Letters Patent of the United States, is':,

1. In dish-washing apparatus, the combination with a sink, ofa frame pivoted at one end thereof in said sink with the other end normally supported thereby, a skeleton conveyor *arried by said frame, spraying mechanism dischargingon the conveyor, a

motor supported by the sink, and clutch.

mechanism between the motor and theconveyor comprising a driven member operatively connected to the conveyor and a driving member connected to the motor, the said members being juxtaposed so that they engage each other when the frame is in its lowered position and are automatically dis engaged when the frame is tiltedupward on its pivot.

2. In dish=washing apparatus, the combination with a sink, of a frame pivoted at one end thereof in said sink with the other end normally supported thereby, a skeleton conveyor carried by said frame, spraying mechanism discharging on'the conveyor and movable with said frame, means for driving the conveyor, a water-supply pipe in alignment with the frame pivot, and a conduit communicating with the spraying mechanism and with the supply pipe and swiveled on the latter.

3. In dish-washing apparatus, the com bination with a sink, of a frame pivoted at one end thereof in said sink with the other end normally supported thereby, a horizontailyinovable skeleton conveyor carried by the frame, spraying. members located below said conveyor and moving with the frame, a water-supply pipe in alignment with the frame pivot, and a conduit communicating with the spraying members and with the members, and vertical swivels in said piping so that the members may be swung laterally out of the way of the frame to permit of its being tilted up. I v

5. In dish-washing apparatus, the combination with a sink, of a frame pivoted at one end thereof in said sink with the other end normally supported thereby, askeleton conveyor carried by'saiid. framaspraying nieeha; IiiSIII: discharging on'theconveyor andrmov able with. said frame, a water-supply pipe in. alignment with the frame pivot, a: conduit communicating with the spraying mechanism andv wi;h the supply pipe and swiveled on'the latter, a'motor supported by the sink, and clutch mechanism comprising! a driven member 1 operatively connected to the conveyor and a driving member connectedto the motor, the said: members being juxtaposed sothat they engage each other when the frame is in its lowered position and are automatically disengaged when the frame is tilted upward on its-pivot.

' 6. In dish-washin apparatus, the combination with a sink, of a frame pivoted at one end thereof in said sink with the other end normally supported thereby, a horizontallymovable skeleton conveyor carried by the frame, spraying members-located above and below said conveyor, a water supply pipe in alignment with the frame pivot, a conduit communicating with the lower spray member and with the supply pipe and swiveledon the latter, piping connected to the upper spraying member, a vertical swivel in said last-mentioned piping sothat the upper spraying member may be swung out of the way of the" ffil-IIIQnWl'lGIl it is tilted up, ainotor supported by the sink, and clutch 1-necha nisin comprising a driven member operatively connected to the conveyor and a drivingmember connected to the mo or, the said members being juxtaposed so that theyengage each other when the frame is in its lowered position and are automatically disengaged when the frame is tilted upward on'its p1vo;. I i. v v y V 7 In dish-Washing apparatus, the combination with a sink, of a frame mounted in the sink on a horizontal pivot at one end of, the frame,dish-washing mechanism comprising a sekeleton conveyor and spraying mechanism carried by said frame and operable in the horizontal position thereof, a removable cover for said dish-washing mechanism, and a'bail pivoted on the frame and adapted to be either turned upwardly to have its transverse portion engage and hold the cover in place when the apparatus is in use or downwardly to have its transverse portion engage an abut-- ment in the sink and hold the frame in its raised tilted position.

8. In dish-washing apparatus, the combination with a sink,- of a frame mounted in the sink on a horizontal pivot at oneendthereof,

dish-washing mechanism comprising a spray member located above the frame, an opposed spray member located in the frame,piping connections for the spray members, a removable cover made of twohinged sheet-metal sections having apertures in'thei-r' edges to aecommodate the. spray members and smaller apertures, a bail pivoted on the frame having 3 loops in its transverse portion and adapted to be either turned downwardly to have its transverse portion engage an abutment in the sink or to be turned upwardly to have its transverse portion engage and hold the cover in place when the apparatus is in use, and hooks pivoted on the cover and adapted to co-operate with the loops carried by the bail and extending up through said smaller apertures in tie cover.

9. In dish-washing apparatus, the combination with an elongated sink having at one end two water cocks, one near the top and the other near the bottom of said sink, a pipe extending longitudinally of the sink, connected to the upper cock, and having two swivel connections, a pair of pipes connected to said sw vel connections, and a spray member secured on the outer end of each of said lastmentioned pipes, which spray members by virtue of the swivel connections can be turned horizontally against the side of the sink or Xtended outwardly, of a frame pivotally supported at one end thereof in the sink with its pivot in axial alignment with the bottom water-cock, a pair of spray members carried bythe frame, piping connections from the pair of spray members to the bottom watercock so that they can be supplied with water, conveying means for the dishes carried by the frame, and means for moving the conveying 'means when the frame is in its horizontal position.

10. In dish-washing apparatus, the combination with an elongated sink having at one end two water cocks, one near the top and the other near the bottom of said sink, a pipe extending longitudinally of the sink, connected to the upper cock, and having two swivel connections, a pair of pipes connected to said swivel connections, and a spray member secured on the ourercnd of each of said lastmentioned pipes, which spray members by virtue of the swivel connections can be turned horizontally against-the side of the sink or extended outwardly, of a frame pivotally supported at one end thereof in the sink with its pivot in axial alignment with the bottom water-cock, a pair of spray members carried by the frame, piping connections fromthe pair of spray members to the bottom watercock so that they can be supplied with water, conveying means for the dishes carried by the frame, a motor suspended from the sink, and driving connections from the motor to the conveying means including clutch mechanism comprising a driven member operatively connected with the conveyor and a driving member connected to the motor, said members being juxtaposed so that they engage each other when the frame is in the lowered position and are automatically disengaged when the frame is tilted upward on its pivot.

11. In dish-washing apparatus, the combination with an elongated sink having at one end two water cocks, one near the top and the othernear the bottom of said sink, a pipe extending longitudinally ofthe sink, connected to the upper cock, and having two swivel connections, a pair of pipes connected to said swivel connections, and a spray member secured on the outer end of each of said lastmentioned pipes, which spray members by virtue of the swivel connections can be turned horizontally against the side of the sink or extended outwardly, of a frame pivotally supported at one end thereof in the sink with its pivot in axial alignment with the bottom water-cock, a pair of spray members carried by the frame, piping connections from the pair of spray members to the bottomwater cock so that they can be supplied with water, conveying means for the dishes carried by the frame, a motor suspended from the sink, driving connections from the motor to the conveying means including clutch mechanism comprising a driven member operatively connected with the conveyor and a driving member connected to the motor, said members being juxtaposed so that they engage each other when the frame is in the lowered position and are automatically disengaged when the frame is tilted upward on its pivot, a two-part removable hinged cover for the frame, and a bail pivoted on the frame and adapted to be either turned upwardly to have its transverse portion engage and hold the cover in place when the apparatus is in use or downwardly to have its trans verse portion engage an abutment in the sink and hold the frame in its raised tilted position when it is being cleaned.

12. In dish-washing apparatus, the combination with a sink, of a cock in the side near one end thereof, a sleeve closed at one end extending horizontally from the cock and havingan outlet in the side and a shaft bearing in its closed end, a shaft bearing in the other side of the sink opposite the cock and in axial alignment therewith, a drive shaft having its ends ournaled in said bearings, a frame containing bearings on said shaft so that the frame is pivoted on the shaft, conveying mechanism in the frame driven by the shaft, spray mechanism carried by the frame and discharging on the conveying mechanism, and a pipe leading from the spray mechanism andhaving its inlet end swiveled on the sleeve. V I

13. In dish-washing apparatus, the combination with a sink, of a cock in the side near one end thereof, a sleeve closed at one end extending horizontally from the cock and having an outlet in the side and a shaft bearing in its closed end, a shaft bearing in the other side of the sink opposite the cock and in axial alignment therewith, a drive shaft having its ends ournaled in said bearin 's, a frame containing hearings on said shaft so that the frame is pivoted on the shaft, conveying mechanism in the frame driven by the shaft, spray mechanism carried by the frame and discharging on the conveying mechanism, a pipe leading from the spray mechanism and having its inlet end swiveled 011 the sleeve, a worm wheel on the shaft, a motor suspended from the sink, and a train of gearing from the motor to the worm wheel including clutch mechanism comprising a driven member operatively connected to the Worm wheel and a driving member connected. to the motor, the said members being juxtaposed so that they engage each other when the frame is in its lowered position and are automatically disengaged when the frame is tilted upward on its pivot.

14. In dish-washing apparatus, the combination with a sink, of a cock in the side near one end thereof, a sleeve closed at one end extending horizontally from the cock and having an outlet in the side and a shaft bearing in its closed end, a shaft bearing in the other side of the sink opposite the cook and in axial alignment therewith, a drive shaft having its ends journaled in said bearings, a frame containing hearings on said shaft so that the frame ispivoted on the shaft, conveying mechanism in the frame driven by the shaft, spray mechanism carried by the frame and discharging on the conveying mechanism, a pipe leading from the spray mechanism and having its inlet end swiveled on the sleeve, a worm wheel on the shaft, a motor suspended from the sink, a train of gearing from the motor to the worm wheel including clutch mechanism comprising a driven member operatively connected to the worm wheel and a driving member connected to the motor, the said members being juxtaposed so that they engage each' other when the frame is in its lowered position and are automatically disengaged when the frame is tilted upward on its pivot, a cock in the side of the sink above the spray mechanism, a

pipe extending horizontally from said lastmentioned cock, a transversely-extending spray member above the conveying mecha-' nism, a pipe connected to said spray member, and a swivel connection between said lastmentioned pipe and the horizontally-extending pipe.

In witness whereof, I have hereunto set my hand this 4th day of August, 1928. WALDEMAR L. LINDGREN. 

